Pumping valve for oil wells



E. SCHNELL.

PUMPING VALVE- FOR OIL WELLS.

APPLICATION FILED M.AR.29. 1921.

Patented Feb. 7, 1922.

. SCHNELL,,OF TBARTLESVILLE, OKLAHOMA.

PUMPING VALVE FOR OIL WELLS.

Specification of Letters Patent.

Patented Feb. '7, 1922.

Application filed March 29, 1921. Serial No. 456,683. i

To all whom it may concern:

Be it known that I, EDWARD SOHNELL, a citizen of the United States, residing at Bartlesville, in the county of Washington and Stateof Oklahoma, have invented new and useful Improvements in' Pumping Valves for Oil Wells, of which the following is a specification.

My invention relates, 1n general terms, to

improvements in reciprocating pumps for oil and other artesian wells, and more particularly it is designedto provide means whereby accumulation of sand above the plunger of a pump will be trapped so that the cups of the plunger will not becut away and destroyed.

It has been found that in pumping oil from wells considerable sand accumulates above the plunger and soon cuts away the cups thereof, and this is especially true-where the well has been sunk to a considerable depth, for after the oil has been pumped oil a column of liquid remains standing in the tubing of approximately the same depth as the well, and while much of the sand held in suspension by the oil is carried off with' the oil, the'sand in this remaining column of oil settles to the working valve. In order to prevent accumulation of sand about the cups of a working valve during the operation of pumping, and also after the oil has been pumped off, there is provided above In improved plunger a novel sand trap which intercepts the sand before it reaches. the cups of the valve and thereby prevents them from being cut away and destroyed.

It is also one of the primary purposes of.

my invention to provide in conjunction with a pumping valve, a device for trapping sand and other material of a granular nature whereby to remove the same from the working barrel and tubing of a well when the sucker rods and valve are withdrawn thus scavenging the tubing at the same time the sucker rod is pulled.

Furthermore, it is also an object of my invention to provide an improved pumping valve or plunger the parts of which can be quickly assembled and disconnected for replacement and cleaning.

To these and other ends, my invention consists in the construction, arran ement andv combination of parts described ereinafter and pointed out in the'claims forming a part of this specification.

One embodiment of my invention is represented byway of example in the accompany- 111% drayvlngs, wherein lgure 1, is a side elevation of my pumpng valve and trap assembled, for disposition 1n the workmg barrel of a well (not shown).

F lgure 2, 1s a sectional side view of my valve showing the arrangement of its separate parts.

Figure 3, is a view taken on the line 3--3 of Figure 2, and

Figure 4, is a view taken on the line 4-4 of Figure 2.

Like characters of reference refer to like or slmllar parts throughout the several views of the drawings, in which The body of my valve is formed of a. reduced section of pipe (2) the upper and lower ends of which are screw-threaded for the reception, respectively, of a nut (3) and a cylindrical. extension (4). The nut (3) is internally screw-threaded from one of its ends for the reception of the pipe section (2) and externally screw-threaded from its other end for the reception of a three-way ball valve casing (5), carrying the usual ball (6), and provided with a screw-threaded reduced projection (7) upon which the ends of the sucker rods of the pump (not shown are engaged. The cylindrical extension (4) has an annular flange (8) formed upon its pipe-engaging end and" is provided with lower end of which is the uppermost ofa plurality of suction cups (15).

The annular rings (16) for supporting and spacing the cups (15) "are of increased thickness from one of their edges to their other edge so that when they are placed .in'

position (see Figure 1) the broad edge will form a supporting seat for the cups (15), which, it will be understood,'are retained in place by the alternate interposition of the rey screw threads and opposedslots (9) in its .is engaged a nut (14) seated against the tainingrings. The lowermost retaining ring is held in place by the locking nut (10) an as the nut (10) is adjustable within certain limits the pressure exerted thereby upon the suction cup assembly can be increased or decreased at will.

Mounted above the nut (15) and enveloping a proximately the entire length of the pipe 2) but spaced therefrom, is a cylmder (17) one end of which is formed with an internal annular flange (18) which engages the flange (8) upon the cylindrical extension, and'is held rigidly thereagainst by the nut (15). This cylinder (17 forms a sand trap for preventing accumulation of sand about the cups (15), and in diameter it should be slightly less than the dameter of the working barrel of the Well within which the entire tool is adapted to be disposed.

, In assembling my pumping valve or plunthe nut (3) and the nut (3) is screwed upon the upper end of the pipe section (2) whereupon the cylindrical extension (4) is screwed upon the opposite end of the pipe (2) and the trapping cylinder (17 moved into place with its flange (18) engaging the flange (8) upon the cylindrical extension (4) In order to hold the cylinder rigidly in place, the nut (14:) (which may be, and "preferably is, a

a lock nut) is screwed into place upon the sembly.

In operation, the oil follows a course defined by the cylindrical extension (4), pipe (2) and the valve, but as the sand through settling action returns again to the valve it is trapped between the pipe (2) and cylinder (17), and remains'so entrapped until the valve or plunger is removed in its entirety from the well. It will consequently be seen that all sand is removed from the working barrel of the well (not shown) and from the tubing when the sucker rod and valve are removed and consequently new suction 'cups may be replaced at any time and-they will-not be quickly cut away by sand already accumulated in the working barrel. thermore, the nature of the valve, and the peculiar arrangement of its parts enables an operator to quickly assemble it or take it down and replace any worn or broken parts. While in the foregoing, there has been illustrated and described such combination and arrangement of elements as constitute the preferred embodiment of my invention, it is nevertheless desired to emphasize the fact that interpretation of the invention should only be conclusve when made in the light of the subjoined claims. it

Having described my invention and its obger the ball valve casing (5) is engaged-with 1. A pumping attachment for oil wanna comprising a hollow body portion, a flanged cylindrical extension separably attached to the body portion, and a cylindrical casing separably mounted upon the extension and fixed rigidly against the flange thereof and extending about and spaced from the body portion for trapping sand and other material. Q

2. A pumping attachment for oil wells comprising a hollow body portion, a cylindrical extension separably attached to the body portion, an annular flange on the extension,a cylindrical casing mounted on the extension and extending about and spaced from the body portion, an annular flange formed on the casing, and the annular flange on the casing disposed to engage the annular flange on the extension wherebyto rigidly mount the casing upon the extension.

3. In a pumping attachment for oil wells including a body portion carrying a valve, and a flanged extension carrying suction cups, a cylindrical casing separablymounted upon the extension and enveloping and spaced from the body portion, and an internal annular flange formed on one end of the casing, for engagement with the flange on the extens1on whereby to rigidly support the casing in spaced relationship to the body portion. 1

4; A pumping attachment for oil wells comprising a hollow extension, an annular flange formed on the extension, a cylindrical casing provided with an internal annular flange receivable upon the extension and disposed with its flange engaging the annu- 'ollow portion lar flange on the extension, a separably connected with the extension and extending through the casing, a plurality of suction cups carried by the extension, means arranged on the extension between the suction cups and the casing and rigidly engagmg the flange on the casing for holding the same 1n position, and an adjustable locking nut disposed upon the free end'ot the extension for preventing displacement of the suction cups.

5. A. pumping attachment for oil wells comprising a body portion, an extension separably engaged with the body portion, a flange on the extension, a nut on the extension, adjacent the flange, and a cylindrical casing mounted upon the extension and engaged adjacent one of its ends between the nut and the flange and locked against the flange by the nut whereby to trap sand and other material. I 7

6. pumping attachment for oil wells comprising a body portion and an extension separably connected together, a flange on the the extension, suction cups carried upon the extension, a nut on the extension adjacent its flange engaged with the flange of the exthe, flan e, a second nut on the extension retension and locked in position by the nut moved rom the flange and upon the end of ad'acent the flange of the extension. v 10 in testimony whereof, I aflix'my signaextension between the above mentioned ture hereto.

nuts, and a cylindrical casing provided with a flange mounted upon the extension with EDWARD SCHNELL. 

